\Header{cats}{Anatomical Data from Domestic Cats}
\keyword{datasets}{cats}
\begin{Description}\relax
The heart and body weights of samples of male and female cats used for
digitalis experiments.  The cats were all adult, over 2 kg body weight.\end{Description}
\begin{Usage}
\begin{verbatim}
data(cats)
\end{verbatim}
\end{Usage}
\begin{Format}\relax
This data frame contains the following columns:
\describe{
\item[\code{Sex}] Sex factor. Levels \code{"F"} and \code{"M"}.

\item[\code{Bwt}] Body weight in kg.

\item[\code{Hwt}] Heart weight in g.
}\end{Format}
\begin{Source}\relax
R. A. Fisher (1947) The analysis of covariance method for the relation
between a part and the whole,
\emph{Biometrics}
\bold{3}, 65--68.\end{Source}
\begin{References}\relax
Venables, W. N. and Ripley, B. D. (2002)
\emph{Modern Applied Statistics with S.} Fourth edition.  Springer.\end{References}

